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<html lang="en">
<head>
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    <!-- 1. 引入vue -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <!-- 2. 引入样式 -->
    <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
    <!-- 3. 引入组件库 -->
    <script src="https://unpkg.com/element-ui/lib/index.js"></script>
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    <title>学生选课系统注册</title>
</head>
<body>
    <div id="app">

    </div>
</body>
<script>
    new Vue({
        el:'#app',
        data() {
            return {}
        }
    })
</script>
</html>